Home / 27,727.32-38,249.48-18,771.68

Finding the Fourth Proportional to 27,727.32, 38,249.48 and 18,771.68

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Solution

The fourth proportional to 27,727.32, 38,249.48 and 18,771.68 is: 25,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,727.32 : 38,249.48 = 18,771.68 : x
  2. Step 2: Convert to fraction form
    27,727.32/38,249.48 = 18,771.68/x
  3. Step 3: Cross multiply
    27,727.32x = 38,249.48 × 18,771.68
  4. Step 4: Simplify right side
    27,727.32x = 718,006,998.73
  5. Step 5: Solve for x
    x = 718,006,998.73/27,727.32
  6. Step 6: Final answer
    x = 25,895.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.